1171222212 has 24 divisors (see below), whose sum is σ = 2741591776. Its totient is φ = 389158848.

The previous prime is 1171222207. The next prime is 1171222223. The reversal of 1171222212 is 2122221711.

It is a super-2 number, since 2×1171222212² = 2743522939764345888, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152158 + ... + 159669.

Almost surely, 2^1171222212 is an apocalyptic number.

1171222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1171222212 is an abundant number, since it is smaller than the sum of its proper divisors (1570369564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1171222212 is a wasteful number, since it uses less digits than its factorization.

1171222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312147 (or 312145 counting only the distinct ones).

The product of its digits is 224, while the sum is 21.

The square root of 1171222212 is about 34223.1239368939. The cubic root of 1171222212 is about 1054.0950325205.

Adding to 1171222212 its reverse (2122221711), we get a palindrome (3293443923).

The spelling of 1171222212 in words is "one billion, one hundred seventy-one million, two hundred twenty-two thousand, two hundred twelve".